Andrews captured these HeLa cells, part of the immortal cell line made famous by Rebecca Skloot's best-seller, The Immortal Life of Henrietta Lacks. These particular cells are in the act of dividing, Andrews told DISCOVER:

"The likelihood is that they are themselves the progeny of a cell division at that very spot 18 or more hours earlier. The stage of the cell division process you see is called cytokinesis where literally cells move apart and split to become 2 separate entities. This is achieved by bundling the internal structures and pinching the middle (think squeezing a balloon). Eventually only when the ends are sealed does the cell severs the middle bit."

Andrews made this image in the course of his research into a protein that is linked to cancer. The signalling protein he was studying is shown in green fluorescent.